Apollo Reduced Pressure Principle Backflow Preventer with NRS Flange x NRS Flange Shut-Off Valves (2 x Flange)

Scraped SKU: 4ALF20X02 2026-06-05 04:30:15

Attributes

Group Code4ALF20X02
Product Typebackflow-preventer
Brand Seriesapollo-4a-series-backflow-preventers
Applicationspotable water
ApprovalsASSE 1003, Build America Buy America (BABA) Act, Buy American Act (BAA), IAPMO/ANSI/CAN Z1117, Made in USA, NSF/ANSI 372, NSF/ANSI 61
Solutionsresidential, fire protection, datacenters, utility, industry

Description

the Apollo model RPLF 4A lead free reduced pressure principle backflow preventers consist of two independently acting, TriForce™ center stem guided check valves with a differential pressure relief valve located between the check valves. the unit is designed to give maximum protection against backflow of health or non-health hazard fluids by either back-pressure or back-siphonage. the durable domestic stainless steel units (2-1/2”-8”) and the FDA epoxy coated ductile iron units (10” and 12”) are easily maintained in the line without any special tools. the TriForce™ check valves operate with a spring assist in the flowing condition to provide excellent flow rates which are documented by an independent laboratory.
  • domestic stainless steel body: 2-1/2" - 8"
  • FDA epoxy coated ductile iron body: 10" & 12"
  • easy maintenance - no special tools required
  • snap-in check retainers: 2-1/2" - 6"
  • bolted-in checks: 8" - 12"
  • low pressure loss as documented by an independent laboratory
  • center-stem guided triforce™ check valves
  • approved for horizontal flow
  • US Patents: 6,443,184; 7,025,085; 7,533,699; 8,240,333
  • made in the USA - requires D option
  • 5 year warranty

 

Variations (7)

4ALF20902

size2-1/2"
dimensions31.25x11.75x20.25 "
weight132 lb
packagingCarton (1 pce)

4ALF20002

size3"
dimensions32.00x12.00x22.50 "
weight153 lb
packagingCarton (1 pce)

4ALF20A02

size4"
dimensions38.50x13.25x25.00 "
weight219 lb
packagingCarton (1 pce)

4ALF20C02

size6"
dimensions46.00x16.50x30.00 "
weight357 lb
packagingCarton (1 pce)

4ALF20E02

size8"
dimensions53.50x18.00x37.25 "
weight632 lb
packagingCarton (1 pce)

4ALF20G02

size10"
dimensions-
weight1608 lb
packagingCarton (1 pce)

4ALF20H02

size12"
dimensions-
weight2003 lb
packagingCarton (1 pce)

Specifications

articleApollo Reduced Pressure Principle Backflow Preventer with NRS Flange x NRS Flange Shut-Off Valves (2 x Flange)
article number with gtin4ALF20X02
manufacturerAalberts integrated piping systems Americas, Inc. (Apollo)
weight2003 lb
materialsstainless steel, cast iron
finishingnone
connection typeflange
max operating pressure liquid175 psi
product groupvalves (backflow preventers)
ETIM classEC011469 Check valve
country of originUnited States
brandApollo
series4A Series Backflow Preventers
product type4ALF20X02
ETIM
{"etim-class":"EC011469 Check valve","Surface protection":"Untreated","Connections":"Flange","Max. operating pressure at 20 °C":"12.07bar","Max. operating pressure at 20 °C (imperial)":"175psi","FM quality mark":"No","UL quality mark":"No","ULC quality mark":"No","LPCB quality mark":"No","Suitable for central heating water":"No","Certified according to SVGW for water":"No","Certified according to SVGW for gas":"No","VdS quality mark":"No","DVGW quality mark for gas":"No","DVGW quality mark for water":"No","KIWA certified":"No"}

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